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FFmpeg/libswscale/loongarch/yuv2rgb_lsx.c

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/*
* Copyright (C) 2023 Loongson Technology Co. Ltd.
* Contributed by Bo Jin(jinbo@loongson.cn)
* All rights reserved.
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "swscale_loongarch.h"
#include "libavutil/loongarch/loongson_intrinsics.h"
#define YUV2RGB_LOAD_COE \
/* Load x_offset */ \
__m128i y_offset = __lsx_vreplgr2vr_d(c->yOffset); \
__m128i u_offset = __lsx_vreplgr2vr_d(c->uOffset); \
__m128i v_offset = __lsx_vreplgr2vr_d(c->vOffset); \
/* Load x_coeff */ \
__m128i ug_coeff = __lsx_vreplgr2vr_d(c->ugCoeff); \
__m128i vg_coeff = __lsx_vreplgr2vr_d(c->vgCoeff); \
__m128i y_coeff = __lsx_vreplgr2vr_d(c->yCoeff); \
__m128i ub_coeff = __lsx_vreplgr2vr_d(c->ubCoeff); \
__m128i vr_coeff = __lsx_vreplgr2vr_d(c->vrCoeff); \
#define LOAD_YUV_16 \
m_y1 = __lsx_vld(py_1, 0); \
m_y2 = __lsx_vld(py_2, 0); \
m_u = __lsx_vldrepl_d(pu, 0); \
m_v = __lsx_vldrepl_d(pv, 0); \
DUP2_ARG2(__lsx_vilvl_b, m_u, m_u, m_v, m_v, m_u, m_v); \
DUP2_ARG2(__lsx_vilvh_b, zero, m_u, zero, m_v, m_u_h, m_v_h); \
DUP2_ARG2(__lsx_vilvl_b, zero, m_u, zero, m_v, m_u, m_v); \
DUP2_ARG2(__lsx_vilvh_b, zero, m_y1, zero, m_y2, m_y1_h, m_y2_h); \
DUP2_ARG2(__lsx_vilvl_b, zero, m_y1, zero, m_y2, m_y1, m_y2); \
/* YUV2RGB method
* The conversion method is as follows:
* R = Y' * y_coeff + V' * vr_coeff
* G = Y' * y_coeff + V' * vg_coeff + U' * ug_coeff
* B = Y' * y_coeff + U' * ub_coeff
*
* where X' = X * 8 - x_offset
*
*/
#define YUV2RGB(y1, y2, u, v, r1, g1, b1, r2, g2, b2) \
{ \
y1 = __lsx_vslli_h(y1, 3); \
y2 = __lsx_vslli_h(y2, 3); \
u = __lsx_vslli_h(u, 3); \
v = __lsx_vslli_h(v, 3); \
y1 = __lsx_vsub_h(y1, y_offset); \
y2 = __lsx_vsub_h(y2, y_offset); \
u = __lsx_vsub_h(u, u_offset); \
v = __lsx_vsub_h(v, v_offset); \
y_1 = __lsx_vmuh_h(y1, y_coeff); \
y_2 = __lsx_vmuh_h(y2, y_coeff); \
u2g = __lsx_vmuh_h(u, ug_coeff); \
u2b = __lsx_vmuh_h(u, ub_coeff); \
v2r = __lsx_vmuh_h(v, vr_coeff); \
v2g = __lsx_vmuh_h(v, vg_coeff); \
r1 = __lsx_vsadd_h(y_1, v2r); \
v2g = __lsx_vsadd_h(v2g, u2g); \
g1 = __lsx_vsadd_h(y_1, v2g); \
b1 = __lsx_vsadd_h(y_1, u2b); \
r2 = __lsx_vsadd_h(y_2, v2r); \
g2 = __lsx_vsadd_h(y_2, v2g); \
b2 = __lsx_vsadd_h(y_2, u2b); \
DUP4_ARG1(__lsx_vclip255_h, r1, g1, b1, r2, r1, g1, b1, r2); \
DUP2_ARG1(__lsx_vclip255_h, g2, b2, g2, b2); \
}
#define RGB_PACK(r, g, b, rgb_l, rgb_h) \
{ \
__m128i rg; \
rg = __lsx_vpackev_b(g, r); \
DUP2_ARG3(__lsx_vshuf_b, b, rg, shuf2, b, rg, shuf3, rgb_l, rgb_h); \
}
#define RGB32_PACK(a, r, g, b, rgb_l, rgb_h) \
{ \
__m128i ra, bg; \
ra = __lsx_vpackev_b(r, a); \
bg = __lsx_vpackev_b(b, g); \
rgb_l = __lsx_vilvl_h(bg, ra); \
rgb_h = __lsx_vilvh_h(bg, ra); \
}
#define RGB_STORE(rgb_l, rgb_h, image) \
{ \
__lsx_vstelm_d(rgb_l, image, 0, 0); \
__lsx_vstelm_d(rgb_l, image, 8, 1); \
__lsx_vstelm_d(rgb_h, image, 16, 0); \
}
#define RGB32_STORE(rgb_l, rgb_h, image) \
{ \
__lsx_vst(rgb_l, image, 0); \
__lsx_vst(rgb_h, image, 16); \
}
#define YUV2RGBFUNC(func_name, dst_type, alpha) \
int func_name(SwsInternal *c, const uint8_t *const src[], \
const int srcStride[], int srcSliceY, int srcSliceH, \
uint8_t *const dst[], const int dstStride[]) \
{ \
int x, y, h_size, vshift, res; \
__m128i m_y1, m_y2, m_u, m_v; \
__m128i m_y1_h, m_y2_h, m_u_h, m_v_h; \
__m128i y_1, y_2, u2g, v2g, u2b, v2r, rgb1_l, rgb1_h; \
__m128i rgb2_l, rgb2_h, r1, g1, b1, r2, g2, b2; \
__m128i shuf2 = {0x0504120302100100, 0x0A18090816070614}; \
__m128i shuf3 = {0x1E0F0E1C0D0C1A0B, 0x0101010101010101}; \
__m128i zero = __lsx_vldi(0); \
\
YUV2RGB_LOAD_COE \
\
h_size = c->opts.dst_w >> 4; \
res = (c->opts.dst_w & 15) >> 1; \
vshift = c->opts.src_format != AV_PIX_FMT_YUV422P; \
for (y = 0; y < srcSliceH; y += 2) { \
dst_type av_unused *r, *g, *b; \
dst_type *image1 = (dst_type *)(dst[0] + (y + srcSliceY) * dstStride[0]);\
dst_type *image2 = (dst_type *)(image1 + dstStride[0]);\
const uint8_t *py_1 = src[0] + y * srcStride[0]; \
const uint8_t *py_2 = py_1 + srcStride[0]; \
const uint8_t *pu = src[1] + (y >> vshift) * srcStride[1]; \
const uint8_t *pv = src[2] + (y >> vshift) * srcStride[2]; \
for(x = 0; x < h_size; x++) { \
#define YUV2RGBFUNC32(func_name, dst_type, alpha) \
int func_name(SwsInternal *c, const uint8_t *const src[], \
const int srcStride[], int srcSliceY, int srcSliceH, \
uint8_t *const dst[], const int dstStride[]) \
{ \
int x, y, h_size, vshift, res; \
__m128i m_y1, m_y2, m_u, m_v; \
__m128i m_y1_h, m_y2_h, m_u_h, m_v_h; \
__m128i y_1, y_2, u2g, v2g, u2b, v2r, rgb1_l, rgb1_h; \
__m128i rgb2_l, rgb2_h, r1, g1, b1, r2, g2, b2; \
__m128i a = __lsx_vldi(0xFF); \
__m128i zero = __lsx_vldi(0); \
\
YUV2RGB_LOAD_COE \
\
h_size = c->opts.dst_w >> 4; \
res = (c->opts.dst_w & 15) >> 1; \
vshift = c->opts.src_format != AV_PIX_FMT_YUV422P; \
for (y = 0; y < srcSliceH; y += 2) { \
int yd = y + srcSliceY; \
dst_type av_unused *r, *g, *b; \
dst_type *image1 = (dst_type *)(dst[0] + (yd) * dstStride[0]); \
dst_type *image2 = (dst_type *)(dst[0] + (yd + 1) * dstStride[0]); \
const uint8_t *py_1 = src[0] + y * srcStride[0]; \
const uint8_t *py_2 = py_1 + srcStride[0]; \
const uint8_t *pu = src[1] + (y >> vshift) * srcStride[1]; \
const uint8_t *pv = src[2] + (y >> vshift) * srcStride[2]; \
for(x = 0; x < h_size; x++) { \
#define DEALYUV2RGBREMAIN \
py_1 += 16; \
py_2 += 16; \
pu += 8; \
pv += 8; \
image1 += 48; \
image2 += 48; \
} \
for (x = 0; x < res; x++) { \
int av_unused U, V, Y; \
U = pu[0]; \
V = pv[0]; \
r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM]; \
g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] \
+ c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \
b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM];
#define DEALYUV2RGBREMAIN32 \
py_1 += 16; \
py_2 += 16; \
pu += 8; \
pv += 8; \
image1 += 16; \
image2 += 16; \
} \
for (x = 0; x < res; x++) { \
int av_unused U, V, Y; \
U = pu[0]; \
V = pv[0]; \
r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM]; \
g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] \
+ c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \
b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM]; \
#define PUTRGB24(dst, src) \
Y = src[0]; \
dst[0] = r[Y]; \
dst[1] = g[Y]; \
dst[2] = b[Y]; \
Y = src[1]; \
dst[3] = r[Y]; \
dst[4] = g[Y]; \
dst[5] = b[Y];
#define PUTBGR24(dst, src) \
Y = src[0]; \
dst[0] = b[Y]; \
dst[1] = g[Y]; \
dst[2] = r[Y]; \
Y = src[1]; \
dst[3] = b[Y]; \
dst[4] = g[Y]; \
dst[5] = r[Y];
#define PUTRGB(dst, src) \
Y = src[0]; \
dst[0] = r[Y] + g[Y] + b[Y]; \
Y = src[1]; \
dst[1] = r[Y] + g[Y] + b[Y]; \
#define ENDRES \
pu += 1; \
pv += 1; \
py_1 += 2; \
py_2 += 2; \
image1 += 6; \
image2 += 6; \
#define ENDRES32 \
pu += 1; \
pv += 1; \
py_1 += 2; \
py_2 += 2; \
image1 += 2; \
image2 += 2; \
#define END_FUNC() \
} \
} \
return srcSliceH; \
}
YUV2RGBFUNC(yuv420_rgb24_lsx, uint8_t, 0)
LOAD_YUV_16
YUV2RGB(m_y1, m_y2, m_u, m_v, r1, g1, b1, r2, g2, b2);
RGB_PACK(r1, g1, b1, rgb1_l, rgb1_h);
RGB_PACK(r2, g2, b2, rgb2_l, rgb2_h);
RGB_STORE(rgb1_l, rgb1_h, image1);
RGB_STORE(rgb2_l, rgb2_h, image2);
YUV2RGB(m_y1_h, m_y2_h, m_u_h, m_v_h, r1, g1, b1, r2, g2, b2);
RGB_PACK(r1, g1, b1, rgb1_l, rgb1_h);
RGB_PACK(r2, g2, b2, rgb2_l, rgb2_h);
RGB_STORE(rgb1_l, rgb1_h, image1 + 24);
RGB_STORE(rgb2_l, rgb2_h, image2 + 24);
DEALYUV2RGBREMAIN
PUTRGB24(image1, py_1);
PUTRGB24(image2, py_2);
ENDRES
END_FUNC()
YUV2RGBFUNC(yuv420_bgr24_lsx, uint8_t, 0)
LOAD_YUV_16
YUV2RGB(m_y1, m_y2, m_u, m_v, r1, g1, b1, r2, g2, b2);
RGB_PACK(b1, g1, r1, rgb1_l, rgb1_h);
RGB_PACK(b2, g2, r2, rgb2_l, rgb2_h);
RGB_STORE(rgb1_l, rgb1_h, image1);
RGB_STORE(rgb2_l, rgb2_h, image2);
YUV2RGB(m_y1_h, m_y2_h, m_u_h, m_v_h, r1, g1, b1, r2, g2, b2);
RGB_PACK(b1, g1, r1, rgb1_l, rgb1_h);
RGB_PACK(b2, g2, r2, rgb2_l, rgb2_h);
RGB_STORE(rgb1_l, rgb1_h, image1 + 24);
RGB_STORE(rgb2_l, rgb2_h, image2 + 24);
DEALYUV2RGBREMAIN
PUTBGR24(image1, py_1);
PUTBGR24(image2, py_2);
ENDRES
END_FUNC()
YUV2RGBFUNC32(yuv420_rgba32_lsx, uint32_t, 0)
LOAD_YUV_16
YUV2RGB(m_y1, m_y2, m_u, m_v, r1, g1, b1, r2, g2, b2);
RGB32_PACK(r1, g1, b1, a, rgb1_l, rgb1_h);
RGB32_PACK(r2, g2, b2, a, rgb2_l, rgb2_h);
RGB32_STORE(rgb1_l, rgb1_h, image1);
RGB32_STORE(rgb2_l, rgb2_h, image2);
YUV2RGB(m_y1_h, m_y2_h, m_u_h, m_v_h, r1, g1, b1, r2, g2, b2);
RGB32_PACK(r1, g1, b1, a, rgb1_l, rgb1_h);
RGB32_PACK(r2, g2, b2, a, rgb2_l, rgb2_h);
RGB32_STORE(rgb1_l, rgb1_h, image1 + 8);
RGB32_STORE(rgb2_l, rgb2_h, image2 + 8);
DEALYUV2RGBREMAIN32
PUTRGB(image1, py_1);
PUTRGB(image2, py_2);
ENDRES32
END_FUNC()
YUV2RGBFUNC32(yuv420_bgra32_lsx, uint32_t, 0)
LOAD_YUV_16
YUV2RGB(m_y1, m_y2, m_u, m_v, r1, g1, b1, r2, g2, b2);
RGB32_PACK(b1, g1, r1, a, rgb1_l, rgb1_h);
RGB32_PACK(b2, g2, r2, a, rgb2_l, rgb2_h);
RGB32_STORE(rgb1_l, rgb1_h, image1);
RGB32_STORE(rgb2_l, rgb2_h, image2);
YUV2RGB(m_y1_h, m_y2_h, m_u_h, m_v_h, r1, g1, b1, r2, g2, b2);
RGB32_PACK(b1, g1, r1, a, rgb1_l, rgb1_h);
RGB32_PACK(b2, g2, r2, a, rgb2_l, rgb2_h);
RGB32_STORE(rgb1_l, rgb1_h, image1 + 8);
RGB32_STORE(rgb2_l, rgb2_h, image2 + 8);
DEALYUV2RGBREMAIN32
PUTRGB(image1, py_1);
PUTRGB(image2, py_2);
ENDRES32
END_FUNC()
YUV2RGBFUNC32(yuv420_argb32_lsx, uint32_t, 0)
LOAD_YUV_16
YUV2RGB(m_y1, m_y2, m_u, m_v, r1, g1, b1, r2, g2, b2);
RGB32_PACK(a, r1, g1, b1, rgb1_l, rgb1_h);
RGB32_PACK(a, r2, g2, b2, rgb2_l, rgb2_h);
RGB32_STORE(rgb1_l, rgb1_h, image1);
RGB32_STORE(rgb2_l, rgb2_h, image2);
YUV2RGB(m_y1_h, m_y2_h, m_u_h, m_v_h, r1, g1, b1, r2, g2, b2);
RGB32_PACK(a, r1, g1, b1, rgb1_l, rgb1_h);
RGB32_PACK(a, r2, g2, b2, rgb2_l, rgb2_h);
RGB32_STORE(rgb1_l, rgb1_h, image1 + 8);
RGB32_STORE(rgb2_l, rgb2_h, image2 + 8);
DEALYUV2RGBREMAIN32
PUTRGB(image1, py_1);
PUTRGB(image2, py_2);
ENDRES32
END_FUNC()
YUV2RGBFUNC32(yuv420_abgr32_lsx, uint32_t, 0)
LOAD_YUV_16
YUV2RGB(m_y1, m_y2, m_u, m_v, r1, g1, b1, r2, g2, b2);
RGB32_PACK(a, b1, g1, r1, rgb1_l, rgb1_h);
RGB32_PACK(a, b2, g2, r2, rgb2_l, rgb2_h);
RGB32_STORE(rgb1_l, rgb1_h, image1);
RGB32_STORE(rgb2_l, rgb2_h, image2);
YUV2RGB(m_y1_h, m_y2_h, m_u_h, m_v_h, r1, g1, b1, r2, g2, b2);
RGB32_PACK(a, b1, g1, r1, rgb1_l, rgb1_h);
RGB32_PACK(a, b2, g2, r2, rgb2_l, rgb2_h);
RGB32_STORE(rgb1_l, rgb1_h, image1 + 8);
RGB32_STORE(rgb2_l, rgb2_h, image2 + 8);
DEALYUV2RGBREMAIN32
PUTRGB(image1, py_1);
PUTRGB(image2, py_2);
ENDRES32
END_FUNC()